*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,Microsoft YaHei,sans-serif;background:#0b0e1a;min-height:100vh;overflow:hidden}#root{width:100%;min-height:100vh;display:flex;justify-content:center;align-items:center}.app{width:100%;height:100vh;position:relative;display:flex;justify-content:center;align-items:center;z-index:10}.content{display:flex;flex-direction:column;align-items:center;gap:1rem;position:relative;z-index:10}.starfield-container{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none}.starfield-container canvas{width:100%;height:100%;display:block}.message-container{text-align:center;padding:2rem}.message{font-size:2.5rem;color:#fff;text-shadow:2px 2px 4px rgba(0,0,0,.5);line-height:1.4;max-width:600px}.message-en{font-size:1.2rem;opacity:.9;margin-top:.6rem}.message-fr{font-size:1.2rem;opacity:.9;margin-top:.3rem}.fireworks-container{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:1}.fireworks-container canvas{width:100%;height:100%;display:block}.firework-particle{position:absolute;border-radius:50%;animation:firework-animation ease-out forwards}@keyframes firework-animation{0%{opacity:1;transform:translate(0) scale(1)}to{opacity:0;transform:translate(calc((var(--random-x, .5) - .5) * 200px),calc((var(--random-y, .5) - .5) * 200px)) scale(1.5)}}.heart-container{text-align:center}.heart{font-size:8rem;opacity:0;transform:scale(.3);transition:all 1s ease-out;text-shadow:0 0 20px rgba(255,0,0,.8);animation:heartbeat 2s ease-in-out infinite}.heart.show{opacity:1;transform:scale(1)}.heart-message{font-size:2rem;color:#fff;margin-top:1rem;opacity:0;transform:translateY(20px);transition:all 1s ease-out .5s;text-shadow:1px 1px 2px rgba(0,0,0,.5)}.heart-message.show{opacity:1;transform:translateY(0)}@keyframes heartbeat{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}@media (max-width: 768px){.message{font-size:1.8rem;padding:1rem}.heart{font-size:5rem}.heart-message{font-size:1.5rem}}@media (max-width: 480px){.message{font-size:1.4rem}.heart{font-size:4rem}.heart-message{font-size:1.2rem}}