/* senzontech.com 主题样式 - 科技蓝深色主题 */
/* 存放在 static/css/senzontech/theme.css */

/* ── 全局 ── */
body {
    background: #0a1628;
    color: #e2e8f0;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ── 导航栏（固定毛玻璃） ── */
.navbar-senzontech {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 0.5rem 0;
}
.navbar-senzontech .navbar-brand {
    font-weight: 700;
    font-size: 1.2rem;
    color: #60a5fa;
    letter-spacing: -0.5px;
}
.navbar-senzontech .navbar-brand:hover {
    color: #93c5fd;
}
.navbar-senzontech .nav-link {
    color: #94a3b8;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    transition: color 0.2s;
}
.navbar-senzontech .nav-link:hover {
    color: #fff;
}
.navbar-senzontech .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.1);
}
.navbar-senzontech .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.5%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ── Hero 区域 ── */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 6rem 2rem 4rem;
    background: linear-gradient(135deg, #0a1628 0%, #1a3a5c 50%, #0a1628 100%);
    position: relative;
    overflow: hidden;
}
.hero-section::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    pointer-events: none;
}
.hero-section::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
    pointer-events: none;
}
.hero-logo {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #60a5fa, #818cf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
}
.hero-tagline {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: #e2e8f0;
}
.hero-tagline .highlight {
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: 1.1rem;
    color: #94a3b8;
    max-width: 600px;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}
.hero-btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    font-size: 1rem;
    background: linear-gradient(135deg, #3b82f6, #6366f1);
    color: #fff;
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
}
.hero-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
    color: #fff;
}
.hero-btn-outline {
    background: transparent;
    border: 1px solid #3b82f6;
    color: #60a5fa;
    margin-left: 1rem;
}
.hero-btn-outline:hover {
    background: rgba(59, 130, 246, 0.1);
    color: #93c5fd;
    transform: translateY(-2px);
}

/* ── 功能卡片 ── */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 4rem auto 0;
    padding: 0 2rem;
    width: 100%;
}
.feature-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: left;
    transition: border-color 0.2s, background 0.2s;
}
.feature-card:hover {
    border-color: rgba(59, 130, 246, 0.3);
    background: rgba(255, 255, 255, 0.05);
}
.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: #60a5fa;
    font-weight: 600;
}
.feature-card p {
    font-size: 0.9rem;
    color: #94a3b8;
    line-height: 1.5;
    margin-bottom: 0;
}

/* ── Footer ── */
.footer-senzontech {
    background: #0a1628;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    color: #94a3b8;
    text-align: center;
    padding: 1.5rem 0;
    font-size: 0.85rem;
}

/* ── 响应式 ── */
@media (max-width: 768px) {
    .hero-tagline { font-size: 2.2rem; }
    .hero-sub { font-size: 1rem; }
    .features-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .hero-btn-outline { margin-left: 0; margin-top: 0.8rem; }
}
@media (max-width: 576px) {
    .hero-tagline { font-size: 1.8rem; }
    .hero-section { padding: 5rem 1rem 3rem; }
}