/* ============================================
   钧信书院 - 科技简约风格
   主色：青墨 #1a1a2e + 科技蓝 #0f3460 + 点缀金 #e8d5b7
   ============================================ */

/* 基础重置 */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg-primary: #0a0a1a;
    --bg-secondary: #1a1a2e;
    --bg-card: rgba(26, 26, 46, 0.8);
    --text-primary: #e8e8e8;
    --text-secondary: #a0a0b0;
    --accent: #e8d5b7;
    --accent-blue: #0f3460;
    --accent-gold: #c9a96e;
    --border: rgba(232, 213, 183, 0.15);
    --shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    --radius: 12px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-gold); }

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

/* 导航栏 */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(10, 10, 26, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0 20px;
}

.nav-container {
    max-width: 1200px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex; align-items: center; gap: 10px;
    font-size: 20px; font-weight: 700; color: var(--accent);
}
.nav-logo img { height: 36px; }

.nav-links { display: flex; gap: 32px; }
.nav-links a {
    color: var(--text-secondary); font-size: 15px;
    position: relative; padding: 4px 0;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a::after {
    content: ''; position: absolute; bottom: -2px; left: 0;
    width: 0; height: 2px; background: var(--accent);
    transition: width 0.3s;
}
.nav-links a:hover::after { width: 100%; }

.nav-actions { display: flex; gap: 12px; align-items: center; }

.btn-outline {
    padding: 8px 20px; border: 1px solid var(--accent);
    border-radius: 20px; color: var(--accent); font-size: 14px;
}
.btn-outline:hover { background: var(--accent); color: var(--bg-primary); }

.btn-primary {
    padding: 8px 20px; background: var(--accent);
    border-radius: 20px; color: var(--bg-primary); font-size: 14px; font-weight: 600;
}
.btn-primary:hover { background: var(--accent-gold); }

.mobile-menu-btn { display: none; background: none; border: none; color: var(--accent); font-size: 24px; cursor: pointer; }

/* 英雄区 */
.hero {
    position: relative; min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, #0a1628 100%);
}

.hero-bg {
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    opacity: 0.4;
}
.hero-bg canvas { width: 100%; height: 100%; }

.hero-content {
    position: relative; z-index: 2; text-align: center;
    padding: 40px 20px;
}

.hero-title {
    font-family: 'Noto Serif SC', 'SimSun', serif;
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--accent-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 16px;
    letter-spacing: 8px;
}

.hero-subtitle {
    font-size: clamp(16px, 2.5vw, 20px);
    color: var(--text-secondary);
    margin-bottom: 40px;
    letter-spacing: 4px;
}

.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.btn-hero {
    padding: 14px 40px; background: var(--accent);
    border-radius: 30px; color: var(--bg-primary);
    font-size: 16px; font-weight: 600;
    transition: var(--transition);
}
.btn-hero:hover { background: var(--accent-gold); transform: translateY(-2px); box-shadow: 0 8px 25px rgba(232, 213, 183, 0.3); }

.btn-hero-outline {
    padding: 14px 40px; border: 2px solid var(--accent);
    border-radius: 30px; color: var(--accent); font-size: 16px;
    transition: var(--transition);
}
.btn-hero-outline:hover { background: var(--accent); color: var(--bg-primary); }

/* 公告区 */
.announcements {
    background: var(--bg-secondary); padding: 12px 0;
    border-bottom: 1px solid var(--border);
}
.announcement-item {
    display: flex; align-items: center; gap: 8px;
    color: var(--text-secondary); font-size: 14px;
}
.announcement-icon { font-size: 16px; }

/* 区块标题 */
.section-title {
    font-family: 'Noto Serif SC', serif;
    font-size: clamp(24px, 4vw, 32px);
    text-align: center; margin-bottom: 12px;
    color: var(--accent);
}
.section-desc {
    text-align: center; color: var(--text-secondary);
    margin-bottom: 48px; font-size: 16px;
}

/* 服务卡片 */
.services { padding: 80px 0; }

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    display: block;
}
.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 8px 30px rgba(232, 213, 183, 0.1);
}

.service-icon { font-size: 40px; margin-bottom: 16px; }
.service-card h3 { font-size: 18px; margin-bottom: 8px; color: var(--accent); }
.service-card p { font-size: 14px; color: var(--text-secondary); margin-bottom: 12px; }
.service-cost {
    display: inline-block; padding: 4px 12px;
    background: rgba(232, 213, 183, 0.1);
    border-radius: 12px; font-size: 12px; color: var(--accent);
}

/* 八卦展示区 */
.bagua-showcase { padding: 80px 0; background: var(--bg-secondary); }

.bagua-3d-container {
    display: flex; gap: 40px; align-items: center;
    justify-content: center; flex-wrap: wrap;
}

.bagua-3d-scene {
    width: 500px; height: 400px;
    border-radius: var(--radius);
    overflow: hidden;
}

.bagua-legend {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.trigram-item {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 16px; background: var(--bg-card);
    border-radius: 8px; font-size: 14px; color: var(--text-secondary);
}
.trigram-item span { font-size: 24px; }

/* 推荐卡片 */
.recommend { padding: 80px 0; }

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.recommend-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    display: block;
}
.recommend-card:hover { transform: translateY(-4px); border-color: var(--accent); }
.recommend-card img { width: 100%; height: 180px; object-fit: cover; }
.card-body { padding: 20px; }
.card-body h4 { color: var(--accent); margin-bottom: 8px; }
.card-body p { color: var(--text-secondary); font-size: 14px; }

/* 太极图 */
.taiji-container {
    display: flex; justify-content: center; padding: 60px 0;
}

.taiji {
    width: 120px; height: 120px; border-radius: 50%;
    position: relative; overflow: hidden;
    animation: taiji-spin 8s linear infinite;
    box-shadow: 0 0 40px rgba(232, 213, 183, 0.2);
}

.taiji-half {
    position: absolute; width: 100%; height: 50%;
}
.taiji-half.black { top: 0; background: #1a1a2e; }
.taiji-half.white { bottom: 0; background: #e8d5b7; }

.taiji-dot {
    position: absolute; width: 20px; height: 20px; border-radius: 50%;
    left: 50%; transform: translateX(-50%);
}
.black-dot { top: 25%; background: #e8d5b7; }
.white-dot { bottom: 25%; background: #1a1a2e; }

@keyframes taiji-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 页脚 */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 40px 0 20px;
}

.footer-container {
    max-width: 1200px; margin: 0 auto; padding: 0 20px;
    display: grid; grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
}

.footer-info h3 { color: var(--accent); margin-bottom: 8px; }
.footer-info p { color: var(--text-secondary); font-size: 14px; }

.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { color: var(--text-secondary); font-size: 14px; }
.footer-links a:hover { color: var(--accent); }

.footer-copyright { color: var(--text-secondary); font-size: 12px; }
.footer-copyright p { margin-bottom: 4px; }

/* 通用页面 */
.page-section { padding: 120px 0 60px; min-height: 80vh; }

.page-header {
    text-align: center; margin-bottom: 48px;
}
.page-header h1 {
    font-family: 'Noto Serif SC', serif;
    font-size: 36px; color: var(--accent); margin-bottom: 12px;
}
.page-header p { color: var(--text-secondary); }

/* 表单 */
.form-container {
    max-width: 440px; margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
}

.form-group { margin-bottom: 20px; }
.form-group label {
    display: block; margin-bottom: 8px;
    color: var(--text-secondary); font-size: 14px;
}
.form-group input {
    width: 100%; padding: 12px 16px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 8px; color: var(--text-primary);
    font-size: 15px; outline: none; transition: var(--transition);
}
.form-group input:focus { border-color: var(--accent); }

.form-submit {
    width: 100%; padding: 14px;
    background: var(--accent); color: var(--bg-primary);
    border: none; border-radius: 8px;
    font-size: 16px; font-weight: 600; cursor: pointer;
    transition: var(--transition);
}
.form-submit:hover { background: var(--accent-gold); }

.form-footer {
    text-align: center; margin-top: 20px;
    color: var(--text-secondary); font-size: 14px;
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0;
        background: var(--bg-secondary); flex-direction: column; padding: 20px; gap: 16px;
        border-bottom: 1px solid var(--border);
    }
    .nav-links.active { display: flex; }
    .mobile-menu-btn { display: block; }

    .footer-container { grid-template-columns: 1fr; text-align: center; }
    .footer-links { flex-direction: row; justify-content: center; flex-wrap: wrap; }

    .bagua-3d-scene { width: 100%; height: 300px; }
    .service-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
    .service-grid { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; align-items: center; }
    .form-container { padding: 24px; }
}