:root {
    --primary-blue: #1d61ff;
    --text-black: #1d1d1f;
    --text-gray: #86868b;
    --bg-white: #ffffff;
    --btn-shadow: rgba(29, 97, 255, 0.3);
}

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

body {
    font-family: -apple-system, "SF Pro Display", "PingFang SC", sans-serif;
    background-color: var(--bg-white);
    color: var(--text-black);
    overflow: hidden;
}

/* 导航栏 */
.navbar {
    padding: 30px 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo { font-size: 1.4rem; font-weight: 900; letter-spacing: -1px; }
.nav-links span { margin-left: 40px; color: var(--primary-blue); font-weight: 500; cursor: pointer; }

/* 主视觉 */
.hero-section {
    height: 65vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.hero-title {
    font-size: 5.5rem;
    font-weight: 800;
    line-height: 1.4;
    letter-spacing: -3px;
    margin-bottom: 50px;
    text-align: center;
}
.highlight {
    color: var(--primary-blue);
    border-right: 4px solid var(--primary-blue);
    padding-right: 10px;
}

/* 按钮 */
.buttons-container { display: flex; gap: 24px; justify-content: center; }
.btn {
    padding: 20px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 24px;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.btn-primary {
    background: var(--primary-blue);
    color: white;
    box-shadow: 0 12px 30px var(--btn-shadow);
}
.btn-primary:hover { transform: translateY(-4px); box-shadow: 0 18px 40px var(--btn-shadow); }
.btn-secondary {
    background: white;
    color: var(--text-black);
    border: 1px solid #f0f0f0;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}
.btn-secondary:hover { transform: translateY(-2px); background: #fafafa; }

/* 页脚 */
.footer {
    position: fixed;
    bottom: 40px;
    width: 100%;
    text-align: center;
    color: var(--text-gray);
    font-size: 0.8rem;
}
.footer-links { margin: 15px 0; }
.footer-links span { margin: 0 15px; }
.status-bar { display: flex; align-items: center; justify-content: center; gap: 8px; }
.dot { width: 8px; height: 8px; background: var(--primary-blue); border-radius: 50%; }