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

:root {
    --primary-color: #b8860b;
    --primary-dark: #996f09;
    --secondary-color: #d4a84b;
    --text-dark: #2c2416;
    --text-light: #6b5d4f;
    --bg-light: #faf9f6;
    --bg-white: #ffffff;
    --border-color: #e8e2d9;
    --profit-color: #c53030;
    --loss-color: #2f855a;
    --warning-color: #d69e2e;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}
.navbar.scrolled { box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15); }
.navbar .container { display: flex; justify-content: space-between; align-items: center; padding: 15px 20px; }
.nav-brand { display: flex; align-items: center; gap: 10px; }
.logo {
    font-size: 24px;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.tagline { font-size: 12px; color: var(--text-light); }
.nav-menu { display: flex; list-style: none; gap: 30px; }
.nav-menu a { text-decoration: none; color: var(--text-dark); font-weight: 500; transition: color 0.3s; }
.nav-menu a:hover { color: var(--primary-color); }
.nav-toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; }

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 0 80px;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, #b8860b 0%, #d4a84b 100%);
    opacity: 0.08;
    z-index: -1;
}
.hero-bg::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(184, 134, 11, 0.12) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}
@keyframes rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }
.hero-title {
    font-size: 64px;
    font-weight: bold;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle { font-size: 28px; color: var(--text-dark); margin-bottom: 20px; font-weight: 500; }
.hero-desc { font-size: 18px; color: var(--text-light); margin-bottom: 40px; line-height: 1.8; }
.hero-buttons { display: flex; gap: 20px; justify-content: center; margin-bottom: 60px; }
.btn {
    padding: 14px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
    border: 2px solid transparent;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 4px 15px rgba(184, 134, 11, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(184, 134, 11, 0.45); }
.btn-outline { background: white; color: var(--primary-color); border-color: var(--primary-color); }
.btn-outline:hover { background: var(--primary-color); color: white; }
.hero-stats { display: flex; justify-content: center; gap: 60px; margin-top: 40px; }
.stat-item { text-align: center; }
.stat-value { font-size: 32px; font-weight: bold; color: var(--primary-color); margin-bottom: 5px; }
.profit { color: var(--profit-color); }
.loss { color: var(--loss-color); }
.stat-label { font-size: 14px; color: var(--text-light); }

.features { padding: 100px 0; background: var(--bg-light); }
.section-title { text-align: center; font-size: 42px; font-weight: bold; margin-bottom: 60px; color: var(--text-dark); }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.feature-card {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}
.feature-card:hover { transform: translateY(-5px); box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12); }
.feature-icon { font-size: 48px; margin-bottom: 20px; }
.feature-card h3 { font-size: 24px; margin-bottom: 15px; color: var(--text-dark); }
.feature-card p { color: var(--text-light); line-height: 1.8; }

.strategy { padding: 100px 0; background: white; }
.strategy-content { max-width: 900px; margin: 0 auto; }
.strategy-item { display: flex; gap: 30px; margin-bottom: 50px; align-items: flex-start; }
.strategy-number { font-size: 64px; font-weight: bold; color: var(--primary-color); opacity: 0.2; line-height: 1; min-width: 80px; }
.strategy-text h3 { font-size: 28px; margin-bottom: 15px; color: var(--text-dark); }
.strategy-text p { font-size: 16px; color: var(--text-light); line-height: 1.8; }
.strategy-warning {
    background: #fef3c7;
    border-left: 4px solid var(--warning-color);
    padding: 25px;
    border-radius: 8px;
    margin-top: 50px;
}
.strategy-warning h4 { color: var(--warning-color); margin-bottom: 10px; }
.strategy-warning p { color: #92400e; line-height: 1.8; }

.risk { padding: 100px 0; background: var(--bg-light); }
.risk-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.risk-card { background: white; padding: 40px; border-radius: 12px; box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08); }
.risk-card h3 { font-size: 24px; margin-bottom: 20px; color: var(--text-dark); }
.risk-card ul { list-style: none; }
.risk-card li { padding: 10px 0; color: var(--text-light); border-bottom: 1px solid var(--border-color); }
.risk-card li:last-child { border-bottom: none; }
.risk-card li::before { content: '✓ '; color: var(--primary-color); font-weight: bold; margin-right: 10px; }

.pricing { padding: 100px 0; background: white; }
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; margin-bottom: 40px; }
.pricing-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    position: relative;
    transition: all 0.3s;
}
.pricing-card:hover { transform: translateY(-5px); box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12); }
.pricing-card.featured { border-color: var(--primary-color); box-shadow: 0 4px 20px rgba(13, 148, 136, 0.2); }
.badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 5px 20px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}
.pricing-card h3 { font-size: 24px; margin-bottom: 20px; color: var(--text-dark); }
.price { font-size: 48px; font-weight: bold; color: var(--primary-color); margin-bottom: 10px; }
.price span { font-size: 20px; color: var(--text-light); }
.price-note { color: var(--primary-color); font-size: 14px; margin-bottom: 30px; }
.pricing-features { list-style: none; text-align: left; margin: 30px 0; }
.pricing-features li { padding: 10px 0; color: var(--text-light); }
.pricing-note { text-align: center; color: var(--text-light); font-size: 14px; }

.contact { padding: 100px 0; background: var(--bg-light); }
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 50px; }
.contact-info h3, .contact-form h3 { font-size: 28px; margin-bottom: 20px; color: var(--text-dark); }
.contact-item { margin-bottom: 15px; color: var(--text-light); }
.contact-form form { display: flex; flex-direction: column; gap: 15px; }
.contact-form input, .contact-form textarea {
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s;
}
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--primary-color); }

.footer { background: var(--text-dark); color: white; padding: 60px 0 20px; }
.footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 40px; margin-bottom: 40px; }
.footer-section h4 { margin-bottom: 20px; font-size: 20px; }
.footer-section p { color: rgba(255, 255, 255, 0.7); line-height: 1.8; }
.footer-section ul { list-style: none; }
.footer-section ul li { margin-bottom: 10px; }
.footer-section ul li a { color: rgba(255, 255, 255, 0.7); text-decoration: none; transition: color 0.3s; }
.footer-section ul li a:hover { color: white; }
.footer-bottom { text-align: center; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, 0.1); color: rgba(255, 255, 255, 0.5); }

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: white;
        width: 100%;
        padding: 20px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        transition: left 0.3s;
    }
    .nav-menu.active { left: 0; }
    .nav-toggle { display: block; }
    .hero-title { font-size: 42px; }
    .hero-subtitle { font-size: 20px; }
    .hero-desc { font-size: 16px; }
    .hero-buttons { flex-direction: column; }
    .hero-stats { flex-direction: column; gap: 30px; }
    .section-title { font-size: 32px; }
    .strategy-item { flex-direction: column; }
    .strategy-number { min-width: auto; }
    .contact-grid { grid-template-columns: 1fr; }
    .features-grid, .risk-grid, .pricing-grid { grid-template-columns: 1fr; }
}