html { scroll-behavior: smooth; }

body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    letter-spacing: 0.015em;
}

/* 樱花飘落特效 */
.sakura {
    position: absolute;
    top: -10%;
    font-size: 18px;
    opacity: 0.35;
    animation: fall linear infinite;
    pointer-events: none;
    user-select: none;
}

@keyframes fall {
    to {
        transform: translateY(110vh) rotate(360deg);
    }
}

/* 头像呼吸动画 */
.avatar-breath {
    animation: breath 4s ease-in-out infinite;
}
@keyframes breath {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.015); }
}

/* 卡片可爱 hover */
#favorites > div, #projects > div {
    transition: all 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
}
#favorites > div:hover, #projects > div:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 25px -5px rgb(251 113 133 / 0.1), 0 8px 10px -6px rgb(251 113 133 / 0.1);
}

/* 输入框可爱焦点 */
input:focus, textarea:focus {
    box-shadow: 0 0 0 4px rgba(251, 113, 133, 0.15);
    border-color: #fda4af;
}

/* 移动菜单 */
#mobile-menu {
    animation: fadeIn 0.2s ease forwards;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}